1 00:00:08,440 --> 00:00:11,200 Speaker 1: Hey, Jorge, what image do you have in your mind 2 00:00:11,280 --> 00:00:14,520 Speaker 1: when you think about an atom? I guess I probably 3 00:00:14,520 --> 00:00:17,080 Speaker 1: think of you know, that image of the little balls 4 00:00:17,280 --> 00:00:20,320 Speaker 1: going to run and who orbits around a little cluster 5 00:00:20,400 --> 00:00:23,479 Speaker 1: of other little balls. It's amazing how compelling that picture is, 6 00:00:23,520 --> 00:00:26,400 Speaker 1: even though it's totally wrong. What do you mean the 7 00:00:26,520 --> 00:00:30,760 Speaker 1: universe doesn't agree with me? It's not that cooperative, and 8 00:00:30,920 --> 00:00:33,920 Speaker 1: that image is mostly about the electrons. What do you 9 00:00:33,920 --> 00:00:37,280 Speaker 1: think about when you think about the nucleus of the atom? 10 00:00:37,320 --> 00:00:40,400 Speaker 1: I guess I always just picture like little proton and 11 00:00:40,600 --> 00:00:43,280 Speaker 1: neutron little balls just clustered together, kind of like you 12 00:00:43,440 --> 00:00:45,680 Speaker 1: take a bunch of marbles and then stick it together. Well, 13 00:00:45,720 --> 00:00:47,840 Speaker 1: as you might have guessed, I'm gonna tell you that's 14 00:00:47,960 --> 00:01:05,919 Speaker 1: also wrong. Hi am or handmade cartoonists and the creator 15 00:01:05,959 --> 00:01:09,760 Speaker 1: of PhD comics. Hi. I'm Daniel. I'm a particle physicist, 16 00:01:09,800 --> 00:01:12,560 Speaker 1: and I'm doing my best to make the universe cooperate. 17 00:01:12,800 --> 00:01:16,720 Speaker 1: It's generally uncooperative. It doesn't just tell you it's secrets, 18 00:01:16,760 --> 00:01:19,399 Speaker 1: you know, just just lay out for you the facts 19 00:01:19,440 --> 00:01:21,720 Speaker 1: about nature. It makes you go on a hunt, it 20 00:01:21,760 --> 00:01:24,360 Speaker 1: makes you ask the hard questions. But doesn't that make 21 00:01:24,360 --> 00:01:27,000 Speaker 1: the answer is more worth it, you know, when you 22 00:01:27,040 --> 00:01:28,560 Speaker 1: have to fight for it. I don't know. I'm the 23 00:01:28,600 --> 00:01:30,520 Speaker 1: kind of person who reads the last page of a 24 00:01:30,560 --> 00:01:32,680 Speaker 1: mystery novel first because I just want to know who 25 00:01:32,720 --> 00:01:34,720 Speaker 1: did it? And then why do you read the rest 26 00:01:34,720 --> 00:01:38,120 Speaker 1: of the book? I don't know. He's well, there you go. 27 00:01:38,560 --> 00:01:41,000 Speaker 1: Maybe the universe wants you to read all of it 28 00:01:41,040 --> 00:01:44,679 Speaker 1: before you find out the answers. That's right. The universe 29 00:01:44,680 --> 00:01:46,840 Speaker 1: has an agent and it wants me to read every 30 00:01:47,000 --> 00:01:49,320 Speaker 1: single arc of the novel. Yeah. I mean, it's been 31 00:01:49,400 --> 00:01:52,760 Speaker 1: fourteen billion years making it. You're just gonna jump to 32 00:01:52,800 --> 00:01:55,400 Speaker 1: the end. Quite a build up. Quite a build up. 33 00:01:55,440 --> 00:01:58,400 Speaker 1: But welcome to a podcast. Daniel and Jorge Explain the Universe, 34 00:01:58,520 --> 00:02:01,600 Speaker 1: a production of I Heart Radio, our podcast in which 35 00:02:01,680 --> 00:02:04,160 Speaker 1: we try to skip you to the end and bring 36 00:02:04,240 --> 00:02:07,320 Speaker 1: you the answers to the biggest questions about the nature 37 00:02:07,320 --> 00:02:10,120 Speaker 1: of the universe, how things are built, what they're made 38 00:02:10,120 --> 00:02:12,920 Speaker 1: out of, how they work on the tiniest little level, 39 00:02:13,160 --> 00:02:16,960 Speaker 1: and how that comes together to make our incredible, inexplicable, 40 00:02:17,160 --> 00:02:21,200 Speaker 1: bonkers universe. That's right, because it is a pretty complicated 41 00:02:21,360 --> 00:02:25,800 Speaker 1: and mysterious universe. There's a lot of nuances and details 42 00:02:25,880 --> 00:02:29,000 Speaker 1: and a lot of hidden things that we still haven't discovered. 43 00:02:29,160 --> 00:02:31,120 Speaker 1: That's right. The things that we see around us in 44 00:02:31,120 --> 00:02:34,360 Speaker 1: the universe are not like the fundamental elements of the universe. 45 00:02:34,400 --> 00:02:37,079 Speaker 1: They are not the things that make up nature at 46 00:02:37,080 --> 00:02:39,560 Speaker 1: its deepest level. We have to take them apart and 47 00:02:39,639 --> 00:02:41,919 Speaker 1: understand what that's made out of, and then what that's 48 00:02:41,960 --> 00:02:44,200 Speaker 1: made out of, and then what that's made of, and 49 00:02:44,240 --> 00:02:47,120 Speaker 1: you can just keep going deeper and deeper. Yeah, it 50 00:02:47,160 --> 00:02:49,520 Speaker 1: seems like the human species we've been sort of breaking 51 00:02:49,680 --> 00:02:53,000 Speaker 1: matter down little by little over the centuries, right. I mean, 52 00:02:53,520 --> 00:02:56,640 Speaker 1: before we thought that things were made out of like water, air, earth, 53 00:02:56,760 --> 00:02:59,679 Speaker 1: and then we found out about particles, and then atoms, 54 00:02:59,680 --> 00:03:03,720 Speaker 1: and then and sub atomic particles and sub subatomic particles. 55 00:03:03,840 --> 00:03:06,079 Speaker 1: It seems like we're breaking things down more and more. 56 00:03:06,280 --> 00:03:08,760 Speaker 1: That's right. We are digging deeper into the nature reality. 57 00:03:08,840 --> 00:03:11,359 Speaker 1: And that's fascinating because we wanted to know, like what 58 00:03:11,520 --> 00:03:13,960 Speaker 1: is the universe at the most basic level, if there 59 00:03:14,040 --> 00:03:17,440 Speaker 1: is even a basic level. But there's also another direction 60 00:03:17,480 --> 00:03:20,079 Speaker 1: that's really interesting for thinking about this problem, which is 61 00:03:20,120 --> 00:03:23,839 Speaker 1: going the other way. Starting from the smallest bits, what 62 00:03:23,919 --> 00:03:26,840 Speaker 1: can you make like if the universe is made out 63 00:03:26,840 --> 00:03:29,720 Speaker 1: of legos? What kind of stuff can you build? Yeah, 64 00:03:29,760 --> 00:03:32,519 Speaker 1: because it's pretty mind blowing, I guess when you realize 65 00:03:32,600 --> 00:03:38,360 Speaker 1: that all of the crazy variety of things that is around. 66 00:03:38,400 --> 00:03:40,920 Speaker 1: This taught me out of the same little tiny bits, right, 67 00:03:41,000 --> 00:03:45,760 Speaker 1: quarks and electrons, you know, like airr and dirt and 68 00:03:46,040 --> 00:03:48,360 Speaker 1: you know metal, they're all made out of the same things. 69 00:03:48,440 --> 00:03:50,800 Speaker 1: They just sort of behave totally different depending on how 70 00:03:50,840 --> 00:03:54,640 Speaker 1: many and how they're arranged, these little tiny bits. That's right, 71 00:03:54,680 --> 00:03:57,960 Speaker 1: it's really just the arrangement. In fact, the number is 72 00:03:57,960 --> 00:04:01,000 Speaker 1: about the same. You have about one proton to one 73 00:04:01,040 --> 00:04:05,400 Speaker 1: electron to one neutron in everything, even if it's lava 74 00:04:05,600 --> 00:04:09,240 Speaker 1: or hamsters or ice cream. So there's something really deep 75 00:04:09,280 --> 00:04:13,200 Speaker 1: and fascinating about the arrangements of particles. How you put 76 00:04:13,200 --> 00:04:16,359 Speaker 1: them together determines what they are, and as you're saying, 77 00:04:16,400 --> 00:04:18,680 Speaker 1: not just by a little bit. Like it determines whether 78 00:04:18,720 --> 00:04:21,520 Speaker 1: it's metallic, or whether it's insulating, or whether it's shiny, 79 00:04:21,640 --> 00:04:23,600 Speaker 1: or whether it's dull, or whether it melts at room 80 00:04:23,640 --> 00:04:27,200 Speaker 1: temperature or not. All these properties determined just by how 81 00:04:27,240 --> 00:04:29,960 Speaker 1: those bits are put together. Yeah, whether it's tasty or 82 00:04:29,960 --> 00:04:33,159 Speaker 1: whether it will kill you, or whether it'll be tasty 83 00:04:33,200 --> 00:04:36,000 Speaker 1: and kill you at the same time. That's the different 84 00:04:36,000 --> 00:04:39,200 Speaker 1: element there. You don't think it's possible for something to 85 00:04:39,200 --> 00:04:42,160 Speaker 1: be tasty and not kill you. I think it's totally possible, 86 00:04:42,200 --> 00:04:44,800 Speaker 1: but it hasn't quite taken off. But yeah, the difference 87 00:04:44,839 --> 00:04:46,520 Speaker 1: is very small, right, I mean, like if you have 88 00:04:46,720 --> 00:04:49,680 Speaker 1: twelve protons and electrons and it behaves like one thing, 89 00:04:49,960 --> 00:04:51,800 Speaker 1: but if you have sixteen of them, it pays like 90 00:04:51,839 --> 00:04:55,400 Speaker 1: something totally different. Yeah, it's totally different. And for a 91 00:04:55,400 --> 00:04:58,200 Speaker 1: long time, we thought those differences were fundamental, that they 92 00:04:58,200 --> 00:05:02,040 Speaker 1: were elemental, you know, that Harbin really was something totally 93 00:05:02,120 --> 00:05:04,640 Speaker 1: different from Neon. But now that we know that you 94 00:05:04,680 --> 00:05:06,760 Speaker 1: can take them apart and that they're made out of 95 00:05:06,800 --> 00:05:09,760 Speaker 1: the same bits, we wonder things like, what else can 96 00:05:09,800 --> 00:05:11,960 Speaker 1: you make out of these little bits? What else can 97 00:05:12,000 --> 00:05:15,040 Speaker 1: our little universe lego kit put together? Yeah, Like if 98 00:05:15,040 --> 00:05:17,080 Speaker 1: you keep adding more and more of them, what happens? 99 00:05:17,160 --> 00:05:18,919 Speaker 1: Or if you arranged them in a different way, do 100 00:05:18,960 --> 00:05:22,560 Speaker 1: you get a totally different element with maybe magical and 101 00:05:22,760 --> 00:05:26,080 Speaker 1: interesting new properties. Yeah, it's like you could create something 102 00:05:26,160 --> 00:05:29,560 Speaker 1: totally new, something that has never existed in the universe before, 103 00:05:29,640 --> 00:05:32,680 Speaker 1: or at least something that no human has ever experienced. 104 00:05:32,920 --> 00:05:36,039 Speaker 1: Imagine creating a new substance with a completely different set 105 00:05:36,040 --> 00:05:38,760 Speaker 1: of properties. When it comes to like how it reflects light, 106 00:05:39,120 --> 00:05:42,200 Speaker 1: is it transparent, is it pink? Is it kind of translucent? 107 00:05:42,320 --> 00:05:44,880 Speaker 1: Does it glow? Maybe it blinks? Who knows? But the 108 00:05:44,960 --> 00:05:47,680 Speaker 1: universe is the limit. Yeah, And as you add more 109 00:05:47,720 --> 00:05:50,440 Speaker 1: and more of these little bits, the elements get heavier 110 00:05:50,480 --> 00:05:53,200 Speaker 1: and heavier, Right, they get literally like heavier and more 111 00:05:53,240 --> 00:05:56,560 Speaker 1: massive and sometimes more unstable. Yeah. So we have the 112 00:05:56,640 --> 00:05:59,720 Speaker 1: periodic table the elements that records the ones we found 113 00:05:59,760 --> 00:06:02,320 Speaker 1: and the few that we've built. But a question that's 114 00:06:02,360 --> 00:06:05,600 Speaker 1: existed since we've had that table is how far does 115 00:06:05,720 --> 00:06:08,320 Speaker 1: that table go? Yeah? Is it like a super long 116 00:06:08,360 --> 00:06:10,280 Speaker 1: table like they have in those big houses or is 117 00:06:10,320 --> 00:06:13,120 Speaker 1: it like a small kitchen table. We don't know, right, 118 00:06:13,240 --> 00:06:15,280 Speaker 1: it's a mystery of the universe. How many leaves can 119 00:06:15,320 --> 00:06:17,320 Speaker 1: we add? Can we invite as many people as we 120 00:06:17,440 --> 00:06:21,119 Speaker 1: want over for dinner? Do you need a kittie table? 121 00:06:22,040 --> 00:06:25,560 Speaker 1: They need to eat outside? And who has that many chairs? Anyways, 122 00:06:25,600 --> 00:06:27,920 Speaker 1: maybe the universe should just have a picnic or you know, 123 00:06:28,279 --> 00:06:31,520 Speaker 1: have a zoom dinner or something, as is popular in 124 00:06:31,560 --> 00:06:34,080 Speaker 1: these days. But anyway, that begs the question that we're 125 00:06:34,080 --> 00:06:36,640 Speaker 1: going to tackle here today. So today on the program, 126 00:06:36,640 --> 00:06:45,600 Speaker 1: we'll be asking the question what is the heaviest possible element? 127 00:06:46,240 --> 00:06:48,640 Speaker 1: Meaning what's the most massive element you can make out 128 00:06:48,640 --> 00:06:52,360 Speaker 1: of these little bits? Yeah, because not every combination sticks together. 129 00:06:52,640 --> 00:06:54,960 Speaker 1: Sometimes you have a serving of neutrons and a serving 130 00:06:54,960 --> 00:06:57,280 Speaker 1: of protons and serving electrons and you try to stick 131 00:06:57,320 --> 00:06:59,960 Speaker 1: them together and they just blow apart. They're not stay. 132 00:07:00,560 --> 00:07:03,599 Speaker 1: But some configurations do hang out. Then they can last 133 00:07:03,640 --> 00:07:07,480 Speaker 1: for days or years or billions of years. And so 134 00:07:07,520 --> 00:07:10,400 Speaker 1: it's curious, like why can some of these things hang 135 00:07:10,400 --> 00:07:13,520 Speaker 1: out together? What makes them stable? How big an element 136 00:07:13,600 --> 00:07:15,440 Speaker 1: can you make and have it hang out and have 137 00:07:15,560 --> 00:07:17,600 Speaker 1: it be stable, have it like really be a thing 138 00:07:17,720 --> 00:07:20,680 Speaker 1: you can play with, right there? Sort of fickle things 139 00:07:20,720 --> 00:07:23,600 Speaker 1: protons and neutrons. That's kind of what it's about, right, 140 00:07:23,600 --> 00:07:26,600 Speaker 1: The elements need periodic table of the elements kind of 141 00:07:26,640 --> 00:07:29,080 Speaker 1: depend on the protons and the neutrons, right, I mean, 142 00:07:29,080 --> 00:07:31,520 Speaker 1: the electrons are sort of fluid and they don't matter 143 00:07:31,600 --> 00:07:34,560 Speaker 1: as much, but it's all about the protons and the neutrons. 144 00:07:34,720 --> 00:07:37,400 Speaker 1: It's all about the protons and neutrons because they feel 145 00:07:37,440 --> 00:07:40,520 Speaker 1: the strong force. They have strong feelings about what hangs 146 00:07:40,520 --> 00:07:43,640 Speaker 1: out and what breaks down. Is that why it was 147 00:07:43,720 --> 00:07:49,120 Speaker 1: called strong the Force because it's so dramatic. The Universe's 148 00:07:49,200 --> 00:07:52,200 Speaker 1: agent suggested that name. But you're right. It's the number 149 00:07:52,240 --> 00:07:55,520 Speaker 1: of protons that tells you sort of what element it is, 150 00:07:55,600 --> 00:07:58,320 Speaker 1: like are you carbon or are you neon? Is determined 151 00:07:58,360 --> 00:08:00,560 Speaker 1: by the number of protons and the new is and 152 00:08:00,560 --> 00:08:02,640 Speaker 1: then you can have various isotopes because you can add 153 00:08:02,640 --> 00:08:05,640 Speaker 1: neutrons or remove neutrons as you like without changing the 154 00:08:05,720 --> 00:08:09,320 Speaker 1: identity of the element. And then the electrons typically follow 155 00:08:09,400 --> 00:08:11,880 Speaker 1: the number of protons. So yeah, you're right. The number 156 00:08:11,880 --> 00:08:14,360 Speaker 1: of protons and the number of neutrons tell you what 157 00:08:14,440 --> 00:08:16,960 Speaker 1: it is and how heavy it is, and that determines 158 00:08:17,040 --> 00:08:20,400 Speaker 1: whether or not it hangs out or breaks apart. Right, 159 00:08:20,640 --> 00:08:22,800 Speaker 1: And you know, if you look at a periodic table, 160 00:08:23,120 --> 00:08:25,480 Speaker 1: it seems pretty filled out down there at the bottom, 161 00:08:25,520 --> 00:08:28,120 Speaker 1: Like as you go lower in the periodic table, that's 162 00:08:28,120 --> 00:08:31,000 Speaker 1: where you have the heavier and heavier elements, and it 163 00:08:31,000 --> 00:08:34,079 Speaker 1: seems pretty complete, like you can add one more proton 164 00:08:34,160 --> 00:08:36,600 Speaker 1: and neutron and you get another element, and you add 165 00:08:36,640 --> 00:08:38,439 Speaker 1: another one and then you get you know, there aren't 166 00:08:38,440 --> 00:08:41,480 Speaker 1: any big gaps there so far. Yeah, that's sort of amazing. 167 00:08:41,559 --> 00:08:43,800 Speaker 1: You know that there's a place for every element and 168 00:08:43,840 --> 00:08:46,520 Speaker 1: an element for every place. And that was a big 169 00:08:46,600 --> 00:08:50,760 Speaker 1: clue in the beginning. People started measuring the atomic numbers 170 00:08:50,800 --> 00:08:53,320 Speaker 1: of these elements and putting them together on the table 171 00:08:53,360 --> 00:08:56,320 Speaker 1: and realizing, oh, there are gaps. Is there something there? 172 00:08:56,880 --> 00:08:59,240 Speaker 1: And then they went and they specifically try to make 173 00:08:59,320 --> 00:09:01,920 Speaker 1: those things and figure out, oh, yeah, there is something 174 00:09:01,960 --> 00:09:05,080 Speaker 1: an element forty three technetium. It turns out it can 175 00:09:05,120 --> 00:09:08,560 Speaker 1: be made. And so organizing them in this way shows 176 00:09:08,640 --> 00:09:11,520 Speaker 1: us where to look for new elements, where to aim 177 00:09:11,559 --> 00:09:15,320 Speaker 1: for and constructing new kinds of stuff, right, And it 178 00:09:15,320 --> 00:09:17,800 Speaker 1: also has to do with this new concept that we're 179 00:09:17,840 --> 00:09:21,240 Speaker 1: also talking about here today, which is called the island 180 00:09:21,400 --> 00:09:24,520 Speaker 1: of stability. Now, Daniel, that sounds like, I don't know, 181 00:09:24,640 --> 00:09:29,200 Speaker 1: like a new age spa maybe in an island, tropical 182 00:09:29,200 --> 00:09:33,560 Speaker 1: island somewhere where you go and stabilize your karma or something, 183 00:09:34,200 --> 00:09:37,360 Speaker 1: But it's actually a pretty heavy physics topic. It is 184 00:09:37,360 --> 00:09:39,640 Speaker 1: a heavy physics topic has all to do with this 185 00:09:39,720 --> 00:09:42,600 Speaker 1: question of heavy elements and whether or not they can 186 00:09:42,640 --> 00:09:44,600 Speaker 1: hang out for a long time. So I don't know 187 00:09:44,600 --> 00:09:46,360 Speaker 1: how many people out there have heard of the Island 188 00:09:46,400 --> 00:09:49,800 Speaker 1: of stability, but we were wondering how popular this term 189 00:09:49,880 --> 00:09:52,040 Speaker 1: is out there in the general public. So as usual, 190 00:09:52,160 --> 00:09:54,120 Speaker 1: Daniel went out there into the wild to the Internet 191 00:09:54,160 --> 00:09:58,360 Speaker 1: to ask random people what is or where is the 192 00:09:58,400 --> 00:10:01,720 Speaker 1: island of stability. So thank you in advance to everybody 193 00:10:01,760 --> 00:10:05,000 Speaker 1: who participated and lend their voice to this question. If 194 00:10:05,040 --> 00:10:07,880 Speaker 1: you'd like to volunteer, please, they'll be shy. Send us 195 00:10:07,880 --> 00:10:10,920 Speaker 1: an email to questions at Daniel and Jorge dot com. 196 00:10:11,120 --> 00:10:13,480 Speaker 1: Here's some people had to say. Is it something like 197 00:10:13,559 --> 00:10:19,640 Speaker 1: the Uncanny Valley? So maybe it's if you look into 198 00:10:20,080 --> 00:10:24,040 Speaker 1: particles a lot into the readouts and there are little 199 00:10:24,040 --> 00:10:29,080 Speaker 1: islands of data that are like stable points that are 200 00:10:29,320 --> 00:10:33,040 Speaker 1: always there, so in a in the sea of static. 201 00:10:33,559 --> 00:10:36,439 Speaker 1: I have not heard of that before. There are elements 202 00:10:36,760 --> 00:10:40,400 Speaker 1: with high atomic number on the periodic table where the 203 00:10:40,400 --> 00:10:45,760 Speaker 1: protons and neutron ratio makes them have long lifetime, so 204 00:10:45,840 --> 00:10:48,840 Speaker 1: they have a large half life. I think those are 205 00:10:48,920 --> 00:10:52,000 Speaker 1: the atoms that I said to form the island of stability. 206 00:10:52,320 --> 00:10:55,480 Speaker 1: Maybe it has something to do with stable orbits within 207 00:10:55,520 --> 00:10:59,120 Speaker 1: the Solar system, so it could be kind of where 208 00:10:59,520 --> 00:11:03,600 Speaker 1: the gravity from the Sun makes the stability of the 209 00:11:03,600 --> 00:11:08,800 Speaker 1: Earth's orbit more stable. For Europe it's quite easy Switzerland, definitely. 210 00:11:09,880 --> 00:11:13,319 Speaker 1: And as for the rest of the universe, it makes 211 00:11:13,360 --> 00:11:18,120 Speaker 1: me think of a particular region, a small region that 212 00:11:18,160 --> 00:11:22,679 Speaker 1: would be very peaceful, very quiet, with no disorder in 213 00:11:22,720 --> 00:11:25,840 Speaker 1: the middle of a huge chaos. It's something that I 214 00:11:25,840 --> 00:11:28,560 Speaker 1: would ask my travel engent, I want to go there 215 00:11:28,960 --> 00:11:31,120 Speaker 1: that I don't know. Where is it? Yes, it sounds 216 00:11:31,120 --> 00:11:34,559 Speaker 1: like it could be something out in the universe um 217 00:11:34,800 --> 00:11:39,560 Speaker 1: where there's not much movement or spinning of anything. Possibly 218 00:11:39,600 --> 00:11:42,800 Speaker 1: the center of the universe, where nothing, nothing experienced from 219 00:11:42,840 --> 00:11:46,480 Speaker 1: I don't know. It kind of sounds like an equilibrium 220 00:11:46,520 --> 00:11:50,840 Speaker 1: of some sort, kind of on the razor's edge. Very unlikely. 221 00:11:51,360 --> 00:11:54,120 Speaker 1: Finally tuned, can't wait to find out. Is the island 222 00:11:54,160 --> 00:11:58,240 Speaker 1: of stability in Washington? D C has something to do 223 00:11:58,440 --> 00:12:03,360 Speaker 1: with quantum yields and how they can be arranged in 224 00:12:03,400 --> 00:12:06,800 Speaker 1: such a way that a stable particle is present as 225 00:12:06,800 --> 00:12:10,439 Speaker 1: opposed to just the energy in the field. I'm guessing 226 00:12:10,440 --> 00:12:14,280 Speaker 1: that it has to do with some sort of parameters 227 00:12:14,400 --> 00:12:20,440 Speaker 1: about how the fields are organized such that a particle 228 00:12:20,559 --> 00:12:24,240 Speaker 1: like an electron or something can can live. I seem 229 00:12:24,280 --> 00:12:28,240 Speaker 1: to remember there was discussion about the Higgs boson and 230 00:12:28,280 --> 00:12:31,600 Speaker 1: how it's at a higher energy because it kind of 231 00:12:31,640 --> 00:12:35,280 Speaker 1: got stranded on an island, as it were, and if 232 00:12:35,280 --> 00:12:37,680 Speaker 1: it ever got tipped off of that, whole bunch of 233 00:12:37,679 --> 00:12:40,199 Speaker 1: bad stuff could happen. All right, Not a lot of 234 00:12:40,240 --> 00:12:43,160 Speaker 1: people know where it is or what it is. No, 235 00:12:43,320 --> 00:12:46,000 Speaker 1: and nobody wants to sign up for your getaway weekend 236 00:12:46,040 --> 00:12:48,800 Speaker 1: there ran, Yeah, I know what's not to like. You 237 00:12:48,920 --> 00:12:52,120 Speaker 1: go somewhere and you, you know, stabilize a little bit, 238 00:12:54,080 --> 00:12:57,079 Speaker 1: you come back feeling center. It's right, Yeah, you're align 239 00:12:57,160 --> 00:13:02,679 Speaker 1: your ear chakras, you know. And a thousand dollars poor, yeah, 240 00:13:02,760 --> 00:13:06,520 Speaker 1: but a million dollars richer in your soul. What a deal? 241 00:13:06,600 --> 00:13:08,480 Speaker 1: What a deal? I like the person who equated it 242 00:13:08,520 --> 00:13:14,160 Speaker 1: to the Uncanny Valley. That's like a totally interesting connection, 243 00:13:14,160 --> 00:13:17,480 Speaker 1: there is it, though I'm not sure exactly how that's connected. 244 00:13:17,600 --> 00:13:19,839 Speaker 1: We're going to have video games with heavy elements in 245 00:13:19,880 --> 00:13:22,800 Speaker 1: them that don't look quite right. I think you're just 246 00:13:22,840 --> 00:13:25,600 Speaker 1: thinking of like geological features. Maybe we should have like 247 00:13:25,679 --> 00:13:30,319 Speaker 1: the Canyon of Complexity or the cliffs of insanity. There 248 00:13:30,360 --> 00:13:33,040 Speaker 1: you go. All right, So let's jump into this topic 249 00:13:33,120 --> 00:13:36,520 Speaker 1: and let's talk about how this island of stabilities related 250 00:13:36,559 --> 00:13:41,240 Speaker 1: to making the heaviest possible element in the universe basically, right, 251 00:13:41,280 --> 00:13:43,680 Speaker 1: I mean, because the periodic table kind of goes on 252 00:13:43,720 --> 00:13:45,520 Speaker 1: and on, and at some point I noticed that it 253 00:13:45,520 --> 00:13:47,720 Speaker 1: doesn't go on forever. Well, that's the question. We don't 254 00:13:47,760 --> 00:13:50,120 Speaker 1: know if it doesn't go on forever because there's nothing 255 00:13:50,160 --> 00:13:53,600 Speaker 1: else to make, or we just haven't yet found those 256 00:13:53,640 --> 00:13:56,520 Speaker 1: elements were being able to fabricate them in the laboratory, 257 00:13:56,800 --> 00:13:59,520 Speaker 1: that's the question. Well, that's the mystery. That's Can we 258 00:13:59,559 --> 00:14:01,160 Speaker 1: just get to the end of the book Daniel here, 259 00:14:01,160 --> 00:14:04,080 Speaker 1: and I guess those of you listening could skip to 260 00:14:04,080 --> 00:14:06,640 Speaker 1: the end of the podcast to find out, But then 261 00:14:06,679 --> 00:14:09,240 Speaker 1: what's of the journey? Daniel, Yeah, exactly, Then you miss 262 00:14:09,240 --> 00:14:13,800 Speaker 1: all these great jokes, all these heavy jokes. Alright, So 263 00:14:13,840 --> 00:14:17,160 Speaker 1: the periodic table can keep going possibly, and it's been 264 00:14:17,240 --> 00:14:19,760 Speaker 1: changing a lot in the last few decades, right like 265 00:14:19,760 --> 00:14:22,280 Speaker 1: we keep adding heavier and new elements. That's right, we 266 00:14:22,400 --> 00:14:26,200 Speaker 1: keep fabricating heavier and heavier elements by combining smaller ones. 267 00:14:26,240 --> 00:14:29,200 Speaker 1: Because the question we have is how far up can 268 00:14:29,280 --> 00:14:31,920 Speaker 1: we go? Is there a limit to how far you 269 00:14:31,920 --> 00:14:34,040 Speaker 1: can go? And if you go far enough do you 270 00:14:34,080 --> 00:14:37,920 Speaker 1: get to some like new region where things are surprisingly stable. 271 00:14:38,440 --> 00:14:40,920 Speaker 1: I guess that's two different questions, like what can you 272 00:14:40,960 --> 00:14:44,880 Speaker 1: put together theoretically physically in terms of the physical loss 273 00:14:44,920 --> 00:14:47,200 Speaker 1: of the universe. And there's also the question of how 274 00:14:47,240 --> 00:14:49,440 Speaker 1: stable it is, like how long will it stay in 275 00:14:49,440 --> 00:14:52,160 Speaker 1: that configuration? Right? That's right? And you know it sort 276 00:14:52,160 --> 00:14:54,280 Speaker 1: of has to be at least a little bit stable 277 00:14:54,320 --> 00:14:56,760 Speaker 1: for you to call it an element. If you take, 278 00:14:56,800 --> 00:15:01,640 Speaker 1: for example, element and element winting, you smush them together 279 00:15:01,760 --> 00:15:05,040 Speaker 1: to make element one nineteen, if it doesn't like settle 280 00:15:05,200 --> 00:15:08,200 Speaker 1: into a state that you can really call element nineteen 281 00:15:08,280 --> 00:15:11,480 Speaker 1: at least for a few milliseconds before it explodes, can 282 00:15:11,520 --> 00:15:13,920 Speaker 1: you really say you've done it right? You haven't really 283 00:15:13,960 --> 00:15:16,480 Speaker 1: mixed the ingredients to make your brownies if they sort 284 00:15:16,480 --> 00:15:20,040 Speaker 1: of repel each other and never come together. That's another element, right, 285 00:15:20,040 --> 00:15:24,240 Speaker 1: brownium brown Um, it's the tastiest element. It's the reason 286 00:15:24,280 --> 00:15:28,360 Speaker 1: brownies are so good. It's quite heavy too, depending on 287 00:15:28,720 --> 00:15:31,720 Speaker 1: how much butter you you put into it. But yeah, 288 00:15:31,720 --> 00:15:33,680 Speaker 1: it's it's a question of stability and is there sort 289 00:15:33,680 --> 00:15:36,000 Speaker 1: of a threshold and physics like it has to last 290 00:15:36,040 --> 00:15:40,280 Speaker 1: for X number of milliseconds or microseconds before you can say, okay, 291 00:15:40,280 --> 00:15:42,320 Speaker 1: that's an element. Yeah, that's a great question. When they 292 00:15:42,320 --> 00:15:46,080 Speaker 1: do these experiments, they only detect these atoms if they 293 00:15:46,200 --> 00:15:50,160 Speaker 1: see characteristic stuff that flies out of that atom. So 294 00:15:50,160 --> 00:15:52,480 Speaker 1: it's not like there's a minimum amount of time it 295 00:15:52,560 --> 00:15:55,600 Speaker 1: has to exist in order for them to like declare 296 00:15:55,640 --> 00:15:58,320 Speaker 1: it having been an element. But they need to see 297 00:15:58,400 --> 00:16:01,160 Speaker 1: its products, the things that it can only make, and 298 00:16:01,200 --> 00:16:02,840 Speaker 1: so for that to happen, there must be some sort 299 00:16:02,880 --> 00:16:05,920 Speaker 1: of minimum amount of time for an element to sort 300 00:16:05,960 --> 00:16:09,000 Speaker 1: of like relax and stabilize and come together from all 301 00:16:09,040 --> 00:16:11,640 Speaker 1: of its ingredients swooshing around. But that's going to be 302 00:16:11,680 --> 00:16:13,920 Speaker 1: a very very small time, much smaller than anything we 303 00:16:13,960 --> 00:16:16,800 Speaker 1: can measure. All right, Well, let's break it down, Daniel. 304 00:16:17,120 --> 00:16:19,560 Speaker 1: I guess the first topic we can talk about here 305 00:16:19,800 --> 00:16:22,840 Speaker 1: is this question of stability, like what makes an atom 306 00:16:22,920 --> 00:16:26,480 Speaker 1: stable and not stable? Yeah, it's fascinating, like why can't 307 00:16:26,520 --> 00:16:29,840 Speaker 1: you just put any number of protons and neutrons together 308 00:16:30,400 --> 00:16:32,720 Speaker 1: and get an atom and call it a day, And 309 00:16:32,760 --> 00:16:34,960 Speaker 1: why does some of them break apart and some of 310 00:16:34,960 --> 00:16:38,360 Speaker 1: them last forever? It's really a fascinating question, and it 311 00:16:38,440 --> 00:16:42,440 Speaker 1: turns out like usual it's complicated, you know, you might 312 00:16:42,480 --> 00:16:44,960 Speaker 1: turn it around and instead of asking like, why are 313 00:16:45,000 --> 00:16:47,360 Speaker 1: some of these things unstable, you might ask like, why 314 00:16:47,480 --> 00:16:51,200 Speaker 1: is any nucleus stable? Because the nucleus has in it 315 00:16:51,240 --> 00:16:55,640 Speaker 1: what protons and neutrons. And protons are positively charged, so 316 00:16:55,680 --> 00:16:58,520 Speaker 1: they repel each other, and the neutrons are just neutral. 317 00:16:58,800 --> 00:17:01,320 Speaker 1: So you might ask like, well, why doesn't the nucleus 318 00:17:01,400 --> 00:17:04,920 Speaker 1: break apart every single time? I have a strong hunch 319 00:17:04,920 --> 00:17:08,360 Speaker 1: about this. It's related to the strong force. It's related 320 00:17:08,400 --> 00:17:11,720 Speaker 1: to the strong force exactly. We know that protons and 321 00:17:11,760 --> 00:17:14,400 Speaker 1: neutrons are just a little bags of corks that are 322 00:17:14,400 --> 00:17:17,399 Speaker 1: held together by gluons, and so they are tied together 323 00:17:17,440 --> 00:17:19,560 Speaker 1: by the strong force, and we like to think of 324 00:17:19,600 --> 00:17:23,000 Speaker 1: them as not having an overall strong force charge, being 325 00:17:23,000 --> 00:17:25,679 Speaker 1: sort of neutral with respect to the strong force, because 326 00:17:25,880 --> 00:17:29,200 Speaker 1: the corks inside them add up all the colors inside balance, 327 00:17:29,400 --> 00:17:32,359 Speaker 1: and you get something which ostensibly is neutral from the 328 00:17:32,359 --> 00:17:35,480 Speaker 1: point of view with the strong force. And that's mostly true, 329 00:17:35,720 --> 00:17:37,920 Speaker 1: but the mostly is doing a lot of work there. 330 00:17:38,160 --> 00:17:40,640 Speaker 1: If you get really close to a proton, you could 331 00:17:40,640 --> 00:17:42,840 Speaker 1: be like closer to one of the corks than the 332 00:17:42,880 --> 00:17:46,440 Speaker 1: other ones, and so the corks don't exactly balance themselves out. 333 00:17:46,640 --> 00:17:49,200 Speaker 1: So when the protons and neutrons get really near each other, 334 00:17:49,520 --> 00:17:51,960 Speaker 1: then like the corks inside them can start talking to 335 00:17:52,040 --> 00:17:54,240 Speaker 1: each other. And so this little residual extra bit of 336 00:17:54,280 --> 00:17:56,800 Speaker 1: the strong force is actually the thing that holds the 337 00:17:56,880 --> 00:18:02,600 Speaker 1: nucleus together. That's enough to overcome the repulsion from the protons. Interesting. 338 00:18:02,680 --> 00:18:04,920 Speaker 1: I guess it's kind of like if you have a 339 00:18:05,000 --> 00:18:08,080 Speaker 1: positive charge in a negative charge and you stick them together, 340 00:18:08,480 --> 00:18:11,280 Speaker 1: they're not gonna really attract or repel anything around them 341 00:18:11,320 --> 00:18:15,479 Speaker 1: because together they're neutral right to everyone around them. But 342 00:18:15,720 --> 00:18:17,840 Speaker 1: if you get really really close to them, you might be, 343 00:18:18,400 --> 00:18:20,520 Speaker 1: you know, closer to the plus or to the miners, 344 00:18:20,560 --> 00:18:24,359 Speaker 1: in which case you would feel an attraction or repulsion. Yeah, precisely. 345 00:18:24,640 --> 00:18:26,280 Speaker 1: So you had two of those things that had a 346 00:18:26,320 --> 00:18:28,400 Speaker 1: plus and minus inside of them, and you brought them 347 00:18:28,400 --> 00:18:31,320 Speaker 1: close together and inverted the orientation so that the plus 348 00:18:31,320 --> 00:18:33,040 Speaker 1: of one was close to the minus of the other, 349 00:18:33,280 --> 00:18:36,600 Speaker 1: then they would feel an overall attraction. And so that's 350 00:18:36,640 --> 00:18:39,040 Speaker 1: a great example for how you can put something together 351 00:18:39,080 --> 00:18:42,000 Speaker 1: which has an overall neutral charge and still have it 352 00:18:42,240 --> 00:18:45,920 Speaker 1: attract itself. And that's the thing that holds these nuclear together. 353 00:18:46,000 --> 00:18:49,080 Speaker 1: That's the reason that they don't bust apart. That's why 354 00:18:49,160 --> 00:18:51,479 Speaker 1: helium and calcium and all the things that make up 355 00:18:51,520 --> 00:18:54,639 Speaker 1: your dinner tonight hang together. It's the strong force, right, 356 00:18:54,640 --> 00:18:56,680 Speaker 1: and so that's what's happening with the corks inside of 357 00:18:56,720 --> 00:18:59,600 Speaker 1: the protons and neutrons. Like the corks sort of attract 358 00:18:59,640 --> 00:19:02,000 Speaker 1: and repair all each other. But once you get three 359 00:19:02,040 --> 00:19:05,359 Speaker 1: of them that are stable, they're sort of neutral together, yeah, exactly, 360 00:19:05,680 --> 00:19:07,840 Speaker 1: And then you mix these things together and they can 361 00:19:07,920 --> 00:19:11,080 Speaker 1: hang out. But because it's the strong force, it's complicated. 362 00:19:11,119 --> 00:19:13,119 Speaker 1: Like the strong force is just a mess. When we 363 00:19:13,119 --> 00:19:15,520 Speaker 1: try to do calculations with a strong force is a 364 00:19:15,560 --> 00:19:19,000 Speaker 1: disaster because the strong force is so powerful that it's 365 00:19:19,119 --> 00:19:22,400 Speaker 1: very sensitive to small changes of distance. So we need 366 00:19:22,440 --> 00:19:26,040 Speaker 1: like massive supercomputers to figure out what's stable and how 367 00:19:26,080 --> 00:19:28,600 Speaker 1: these things work and the masses of particles. It's really 368 00:19:28,680 --> 00:19:31,760 Speaker 1: kind of a nightmare to do any calculations with. It's 369 00:19:31,800 --> 00:19:34,719 Speaker 1: a heavy endeavor. It's a heavy endeavor. But we've noticed 370 00:19:34,760 --> 00:19:37,040 Speaker 1: a few things, like we don't really understand how to 371 00:19:37,040 --> 00:19:40,520 Speaker 1: predict these things, but we've noticed some patterns. We've noticed 372 00:19:40,600 --> 00:19:42,600 Speaker 1: sort of like what is stable and what is not. 373 00:19:43,040 --> 00:19:45,160 Speaker 1: If you just sort of count the number of protons 374 00:19:45,160 --> 00:19:48,280 Speaker 1: and neutrons that are in the nuclei of stable atoms. 375 00:19:48,280 --> 00:19:50,800 Speaker 1: You notice some really interesting patterns. Yeah, you get sort 376 00:19:50,800 --> 00:19:54,000 Speaker 1: of like a magic sequence of numbers, right, They feel 377 00:19:54,040 --> 00:19:57,879 Speaker 1: almost sort of like supernatural. Yeah, exactly. All right, Well, 378 00:19:57,920 --> 00:20:00,520 Speaker 1: let's get into this magic sequence of number and let's 379 00:20:00,520 --> 00:20:03,280 Speaker 1: talk about how to make a really stable heavy atom. 380 00:20:03,400 --> 00:20:18,040 Speaker 1: But first let's take a quick break. All right, we're 381 00:20:18,040 --> 00:20:21,840 Speaker 1: talking about the heaviest possible element you can make in 382 00:20:21,920 --> 00:20:25,160 Speaker 1: the universe. How many protons and neutrons can you stick 383 00:20:25,200 --> 00:20:28,399 Speaker 1: together and still be stable? And we're talking about the 384 00:20:28,440 --> 00:20:30,720 Speaker 1: stability of these things, and it has to do with 385 00:20:30,840 --> 00:20:33,200 Speaker 1: some sort of magic number, right, Daniel. Yeah, it turns 386 00:20:33,200 --> 00:20:36,400 Speaker 1: out that certain numbers of protons and neutrons are more 387 00:20:36,440 --> 00:20:40,640 Speaker 1: stable than other configurations. And it's really kind of analogous 388 00:20:40,680 --> 00:20:44,120 Speaker 1: to the way we think about electrons filling up their orbitals. 389 00:20:44,560 --> 00:20:46,760 Speaker 1: You know the picture you were describing earlier of a 390 00:20:46,840 --> 00:20:50,399 Speaker 1: nucleus with electrons around it, And we know that, like, 391 00:20:50,480 --> 00:20:53,199 Speaker 1: you can have two electrons in the lowest orbital and 392 00:20:53,240 --> 00:20:54,880 Speaker 1: then a certain number in the next and a certain 393 00:20:54,960 --> 00:20:56,760 Speaker 1: number in the next and they sort of fill up 394 00:20:56,800 --> 00:20:59,240 Speaker 1: these shells, and as they fill them up, they get 395 00:20:59,280 --> 00:21:02,520 Speaker 1: more interact they are less interactive, etcetera. It turns out 396 00:21:02,560 --> 00:21:05,960 Speaker 1: that the protons and the neutrons inside the nucleus also 397 00:21:06,040 --> 00:21:08,119 Speaker 1: have these kind of shells, and you can get like 398 00:21:08,600 --> 00:21:11,919 Speaker 1: two neutrons at the inner shell, and then six in 399 00:21:11,960 --> 00:21:14,240 Speaker 1: the next shell, and twelve in the next shell, and 400 00:21:14,359 --> 00:21:16,960 Speaker 1: eight in the shell after that. So we've noticed these 401 00:21:17,000 --> 00:21:19,760 Speaker 1: trends that if you have just the right number of 402 00:21:19,840 --> 00:21:23,159 Speaker 1: neutrons to like fill up a shell, then the atom 403 00:21:23,200 --> 00:21:26,720 Speaker 1: becomes much more stable. Interesting, you mean, the nucleus of 404 00:21:26,720 --> 00:21:29,760 Speaker 1: an atom has layers like an onion or the sun. 405 00:21:29,960 --> 00:21:32,240 Speaker 1: It's really kind of hard to visualize. It's not like 406 00:21:32,280 --> 00:21:35,800 Speaker 1: there are physical shells. These are sort of energy levels. 407 00:21:36,040 --> 00:21:38,679 Speaker 1: These are like how many neutrons you have filling up 408 00:21:38,760 --> 00:21:41,200 Speaker 1: energy levels. The best way to visualize it is still 409 00:21:41,240 --> 00:21:43,800 Speaker 1: like a ball of marbles, but they're all sort of 410 00:21:43,840 --> 00:21:46,840 Speaker 1: like moving around and swishing, and different ones have different 411 00:21:46,880 --> 00:21:49,399 Speaker 1: amounts of energy. You see. Is it kind of like 412 00:21:49,480 --> 00:21:53,400 Speaker 1: electron clouds, like they're in different configurations and their quantum 413 00:21:54,080 --> 00:21:56,359 Speaker 1: you know shape, Yeah, exactly. That's a good way to 414 00:21:56,400 --> 00:21:58,440 Speaker 1: think about it. You know, like they're filling up these 415 00:21:58,560 --> 00:22:01,879 Speaker 1: energy levels, and as you get to like a complete shell, 416 00:22:02,240 --> 00:22:04,520 Speaker 1: then they sort of fit together very nicely in a 417 00:22:04,520 --> 00:22:06,600 Speaker 1: way that supports each other. And so if you have, 418 00:22:06,680 --> 00:22:10,200 Speaker 1: for example, uh, six neutrons and the third shell, then 419 00:22:10,240 --> 00:22:12,400 Speaker 1: they fit together really nicely. And the next shell needs 420 00:22:12,400 --> 00:22:14,600 Speaker 1: twelve neutrons, the next one needs eight, and the next 421 00:22:14,600 --> 00:22:18,320 Speaker 1: one needs twenty two. And these aren't numbers that we understand. 422 00:22:18,359 --> 00:22:20,160 Speaker 1: It's not like we can sit down and figure out 423 00:22:20,359 --> 00:22:22,560 Speaker 1: why you need twenty two or why you need eight, 424 00:22:22,720 --> 00:22:25,280 Speaker 1: But it's just sort of an observation we've made. As 425 00:22:25,320 --> 00:22:28,520 Speaker 1: you put these things together, the nucleus becomes more stable 426 00:22:28,720 --> 00:22:32,720 Speaker 1: if you have these magic numbers of neutrons and protons. Interesting, 427 00:22:32,760 --> 00:22:35,360 Speaker 1: so you see this pattern in the periodic table, like 428 00:22:35,400 --> 00:22:37,840 Speaker 1: you know, the first two heavy elements are stable, then 429 00:22:37,880 --> 00:22:40,240 Speaker 1: the next most stable is the eighth one, and then 430 00:22:40,240 --> 00:22:43,200 Speaker 1: the most stable is the one and things like that. Yeah, 431 00:22:43,240 --> 00:22:45,720 Speaker 1: it's a little bit more complicated because you count the 432 00:22:45,720 --> 00:22:49,159 Speaker 1: neutrons and the protons separately, Like if the protons have 433 00:22:49,240 --> 00:22:52,480 Speaker 1: their magic number, then it's stable. If the neutrons have 434 00:22:52,600 --> 00:22:55,000 Speaker 1: their magic number, it can be stable. And then you 435 00:22:55,040 --> 00:22:58,560 Speaker 1: could have doubly magic elements things where both the neutrons 436 00:22:58,760 --> 00:23:01,480 Speaker 1: and the protons have their magic number, and those are 437 00:23:01,480 --> 00:23:04,480 Speaker 1: the most stable. But as these things sort of fit together, 438 00:23:04,520 --> 00:23:07,600 Speaker 1: you can get different amounts of stability per atom. Interesting, 439 00:23:07,640 --> 00:23:09,920 Speaker 1: you have two variables here that you need to match 440 00:23:10,000 --> 00:23:12,920 Speaker 1: to get the most stable element. Yeah, exactly. And it's 441 00:23:12,960 --> 00:23:16,240 Speaker 1: all sort of related to the quantum nature of these particles, 442 00:23:16,320 --> 00:23:17,920 Speaker 1: you know what I mean, Like, because they're a wave 443 00:23:18,000 --> 00:23:20,160 Speaker 1: and they have to fit within a certain energy level 444 00:23:20,320 --> 00:23:23,880 Speaker 1: or space, they sort of click in certain integers. Yeah, 445 00:23:23,920 --> 00:23:27,080 Speaker 1: these guys are all trapped inside this potential well in 446 00:23:27,119 --> 00:23:30,160 Speaker 1: the nucleus, this strong force which wants to hold them together, 447 00:23:30,560 --> 00:23:33,320 Speaker 1: and it's mostly successful for a stable atom, you know, 448 00:23:33,359 --> 00:23:36,440 Speaker 1: but some atoms are more stable than others. What happens 449 00:23:36,760 --> 00:23:38,679 Speaker 1: when an atom is breaking apart? You're right, it's a 450 00:23:38,760 --> 00:23:41,520 Speaker 1: quantum effect. It's like you have a particle stuck in 451 00:23:41,520 --> 00:23:45,159 Speaker 1: a potential well, but that potential well doesn't have infinite sides, 452 00:23:45,200 --> 00:23:48,399 Speaker 1: and so occasionally it can slip out. So the way 453 00:23:48,440 --> 00:23:51,240 Speaker 1: that a nucleus breaks apart, the way that it decays, 454 00:23:51,440 --> 00:23:54,280 Speaker 1: is that a quantum tunnels from one state where it's 455 00:23:54,320 --> 00:23:58,120 Speaker 1: trapped inside this well outside of it into a state 456 00:23:58,119 --> 00:24:00,760 Speaker 1: where you have two separate pieces, and so to do 457 00:24:00,800 --> 00:24:03,639 Speaker 1: that you have to quantum tunnel, and the likelihood of 458 00:24:03,640 --> 00:24:05,600 Speaker 1: that happening depends sort of like on the height of 459 00:24:05,640 --> 00:24:09,239 Speaker 1: the potential barrier. And also it's with I see all right, 460 00:24:09,280 --> 00:24:12,000 Speaker 1: so it's sort of quantized by these magic numbers. But 461 00:24:12,119 --> 00:24:14,240 Speaker 1: I guess the question we're trying to answer today is 462 00:24:14,240 --> 00:24:16,479 Speaker 1: is there a limit like you can have? You know, 463 00:24:16,560 --> 00:24:23,320 Speaker 1: two is a stable number. Eight's a stable number eight two. Potentially, 464 00:24:23,440 --> 00:24:25,439 Speaker 1: how far can you go, you know, how far can 465 00:24:25,440 --> 00:24:28,040 Speaker 1: you keep you know, putting these protons and neutrons together 466 00:24:28,119 --> 00:24:31,120 Speaker 1: and still get you know, the double magic stability numbers. Yeah, 467 00:24:31,200 --> 00:24:34,760 Speaker 1: it's really interesting. The heaviest stable thing that we have 468 00:24:34,840 --> 00:24:38,160 Speaker 1: ever found in the universe is lead. Lead is totally stable, 469 00:24:38,560 --> 00:24:41,199 Speaker 1: and it's element number eighty two. And you know, if 470 00:24:41,240 --> 00:24:44,640 Speaker 1: you make lead, we think it will just stick around forever. Really, Yeah, 471 00:24:44,640 --> 00:24:47,199 Speaker 1: that's the heaviest stable thing there is. It's like it 472 00:24:47,320 --> 00:24:49,880 Speaker 1: hits the two magic numbers, like the protons are super 473 00:24:49,880 --> 00:24:52,760 Speaker 1: happy together and the neutrons are super happy together. Yeah, 474 00:24:52,800 --> 00:24:56,320 Speaker 1: exactly eighty two is one of the magic numbers. And 475 00:24:56,359 --> 00:24:59,560 Speaker 1: that's we think is what makes lead so stable. Now, 476 00:24:59,560 --> 00:25:03,040 Speaker 1: there is other stuff out there. For example, uranium, Right, 477 00:25:03,119 --> 00:25:05,800 Speaker 1: Uranium is the heaviest element that we find in nature, 478 00:25:06,080 --> 00:25:08,199 Speaker 1: but of course we know that it's not stable. It 479 00:25:08,200 --> 00:25:11,520 Speaker 1: tends to decay down to lighter things. So there are 480 00:25:11,640 --> 00:25:14,280 Speaker 1: processes out there in the universe, like the collisions of 481 00:25:14,320 --> 00:25:17,560 Speaker 1: neutron stars that can make these heavy elements, some of 482 00:25:17,600 --> 00:25:19,560 Speaker 1: which are very long lived. You know, they live for 483 00:25:19,640 --> 00:25:22,600 Speaker 1: thousands or millions or even billions of years. But lead 484 00:25:22,680 --> 00:25:26,159 Speaker 1: is the heaviest stable thing that we've found. And so 485 00:25:26,280 --> 00:25:28,960 Speaker 1: you can ask really fun questions like is it possible 486 00:25:29,000 --> 00:25:32,760 Speaker 1: that there are heavier elements up there much further down, 487 00:25:32,840 --> 00:25:35,800 Speaker 1: deeper into the periodic table where you combine these magic 488 00:25:35,880 --> 00:25:38,840 Speaker 1: numbers to get like really big numbers that could like 489 00:25:39,119 --> 00:25:41,560 Speaker 1: click together in a stable way, like a super duper 490 00:25:41,640 --> 00:25:45,399 Speaker 1: heavy lead or something. Yeah, exactly, exactly an element that 491 00:25:45,440 --> 00:25:49,200 Speaker 1: makes lead feel lightweight. Yeah, And I guess is there 492 00:25:49,200 --> 00:25:52,720 Speaker 1: anything like after lead, what's the next you know, heaviest 493 00:25:52,800 --> 00:25:55,200 Speaker 1: but also sort of stable element that we know about. 494 00:25:55,200 --> 00:25:57,760 Speaker 1: You know, there's really nothing above lead that's very stable. 495 00:25:57,800 --> 00:26:00,159 Speaker 1: You know, uranium is up there, plutonium is up there, 496 00:26:00,200 --> 00:26:02,680 Speaker 1: but nothing up there really has much stability at all. 497 00:26:02,880 --> 00:26:04,479 Speaker 1: But we can look at the trends, and we can 498 00:26:04,520 --> 00:26:06,840 Speaker 1: get a sense for like as we go up, as 499 00:26:06,880 --> 00:26:10,600 Speaker 1: we crank up the number A hundred hundred, five hundred fifteen, 500 00:26:10,920 --> 00:26:13,640 Speaker 1: are things getting more or less stable, and that can 501 00:26:13,680 --> 00:26:16,240 Speaker 1: help us sort of predict whether or not there's going 502 00:26:16,280 --> 00:26:19,320 Speaker 1: to be stuff up there. But we can try to predict, right, 503 00:26:19,320 --> 00:26:21,800 Speaker 1: we can put these magic numbers together and we can say, well, 504 00:26:22,040 --> 00:26:24,560 Speaker 1: what if we could make this element like one twenty 505 00:26:24,720 --> 00:26:28,679 Speaker 1: six that's called n b hexi um. This one would 506 00:26:28,720 --> 00:26:32,720 Speaker 1: be doubly magic because as a proton number six, which 507 00:26:32,760 --> 00:26:35,679 Speaker 1: is magic, and then a hundred and eighty four neutrons, 508 00:26:35,920 --> 00:26:38,199 Speaker 1: which is also magic. So it would be this huge 509 00:26:38,800 --> 00:26:43,080 Speaker 1: massive nucleus, super duper heavy element one. But you know, 510 00:26:43,160 --> 00:26:45,120 Speaker 1: we haven't seen it yet or we have been able 511 00:26:45,160 --> 00:26:47,800 Speaker 1: to make it yet, so we just don't know if 512 00:26:47,840 --> 00:26:51,840 Speaker 1: it's stable or not. It's a hypothetical element, yes, exactly. 513 00:26:51,920 --> 00:26:56,119 Speaker 1: Everything above A hundred and eighteen is hypothetical. D eighteen 514 00:26:56,200 --> 00:26:59,040 Speaker 1: is the heaviest thing we've ever fabricated. Everything above that 515 00:26:59,200 --> 00:27:01,960 Speaker 1: is just speculating. We don't know if it can't exist 516 00:27:02,000 --> 00:27:04,360 Speaker 1: and what it would be like two is the heaviest 517 00:27:04,400 --> 00:27:07,439 Speaker 1: we've seen in nature, like the naturally seems to occur. 518 00:27:08,359 --> 00:27:11,280 Speaker 1: That's stable. But you can imagine heavier elements, and you 519 00:27:11,280 --> 00:27:13,119 Speaker 1: can give him names like you're allowed to do that. 520 00:27:14,080 --> 00:27:16,840 Speaker 1: You can name things that don't exist yet. They've named 521 00:27:16,880 --> 00:27:19,560 Speaker 1: a bunch of these elements that we haven't actually made yet. 522 00:27:19,640 --> 00:27:21,960 Speaker 1: But I think those names are placeholders, and when somebody 523 00:27:22,040 --> 00:27:25,200 Speaker 1: actually makes them, then they get sort of decide the name, 524 00:27:25,840 --> 00:27:27,720 Speaker 1: because up to one eighteen they have sort of more 525 00:27:27,760 --> 00:27:30,159 Speaker 1: interesting names than above that they have these sort of 526 00:27:30,200 --> 00:27:33,119 Speaker 1: placeholder names. Can I stick my claim in a number, 527 00:27:33,200 --> 00:27:36,199 Speaker 1: like you know, it's five seventy three taken? Can I 528 00:27:36,240 --> 00:27:41,680 Speaker 1: call that chammium? Do it? There? You go? Chammi? Um five? 529 00:27:44,760 --> 00:27:49,480 Speaker 1: Are you stable? Are you feeling stable today? My brownie? First? 530 00:27:49,760 --> 00:27:52,240 Speaker 1: All right? So we can imagine and there might be 531 00:27:52,280 --> 00:27:55,760 Speaker 1: these sort of super heavy lead elements that are doubly 532 00:27:56,000 --> 00:27:58,760 Speaker 1: magic and super stable, but we don't know, right, Like 533 00:27:58,840 --> 00:28:01,040 Speaker 1: that's a big mystery. We don't know. It's a big mystery. 534 00:28:01,280 --> 00:28:04,800 Speaker 1: And we've been sort of bad historically at understanding where 535 00:28:04,840 --> 00:28:07,479 Speaker 1: the periodic table might end. And this is because this 536 00:28:07,560 --> 00:28:10,240 Speaker 1: is hard, right, the strong force and nuclear physics is 537 00:28:10,359 --> 00:28:13,000 Speaker 1: tough stuff. But people have been making predictions for a 538 00:28:13,000 --> 00:28:15,840 Speaker 1: long time and getting it wrong. You know, for example, 539 00:28:16,119 --> 00:28:19,280 Speaker 1: when we discovered plutonium, which is just element ninety four, 540 00:28:19,480 --> 00:28:22,680 Speaker 1: people thought about naming it ultimium because they thought maybe 541 00:28:22,680 --> 00:28:25,520 Speaker 1: it was the last element anybody would ever make. And 542 00:28:25,600 --> 00:28:28,159 Speaker 1: now you know, we're more than ten elements beyond it. 543 00:28:28,359 --> 00:28:30,879 Speaker 1: I see, I guess maybe a question here is what's 544 00:28:30,920 --> 00:28:34,880 Speaker 1: the limitation? You know, both in nature and for us 545 00:28:34,880 --> 00:28:38,480 Speaker 1: as humans, like it seems like nature doesn't like making 546 00:28:38,520 --> 00:28:42,400 Speaker 1: things heavier than lead or uranium or plutonium. Is that 547 00:28:42,440 --> 00:28:44,480 Speaker 1: because that's just the you know, it takes too much 548 00:28:44,560 --> 00:28:46,720 Speaker 1: energy to make heavier things. It takes energy, but you 549 00:28:46,760 --> 00:28:49,400 Speaker 1: also have to have the ingredients, right, to make a 550 00:28:49,440 --> 00:28:52,160 Speaker 1: really heavy element, you have to have the ingredients which 551 00:28:52,160 --> 00:28:55,240 Speaker 1: will also be pretty heavy. And you know, these heavy 552 00:28:55,280 --> 00:28:57,760 Speaker 1: elements are rare. As you get further up in the 553 00:28:57,800 --> 00:29:01,400 Speaker 1: periodic table, you need things like drawn star collisions to 554 00:29:01,480 --> 00:29:05,920 Speaker 1: even fabricate enough platinum or uranium or plutonium. And so 555 00:29:06,040 --> 00:29:08,880 Speaker 1: to make something which is like twice as heavy as plutonium, 556 00:29:09,040 --> 00:29:12,240 Speaker 1: you need some situation where you're like smashing plutonium against 557 00:29:12,240 --> 00:29:14,360 Speaker 1: plutonium to make you know, I don't know what it's 558 00:29:14,360 --> 00:29:19,880 Speaker 1: called double plutonium plotium exactly. So these things just get 559 00:29:20,000 --> 00:29:22,840 Speaker 1: rarer and rarer, and so you just don't have them 560 00:29:22,880 --> 00:29:26,000 Speaker 1: being made at all. But one question is whether these 561 00:29:26,040 --> 00:29:29,640 Speaker 1: things actually already exist out there in the universe. Like 562 00:29:29,960 --> 00:29:34,440 Speaker 1: it's possible that und hexium exists and it's somewhere out there, 563 00:29:34,480 --> 00:29:36,640 Speaker 1: buried deep in the Earth or in the center of 564 00:29:36,640 --> 00:29:41,200 Speaker 1: a neutron star. Right, Because when these heavy neutron stars crash, 565 00:29:41,280 --> 00:29:44,240 Speaker 1: I mean, can anything happen, Like could it just become 566 00:29:44,320 --> 00:29:48,560 Speaker 1: one giant element with a million protons in it? That's 567 00:29:48,560 --> 00:29:51,400 Speaker 1: an awesome question, and you know, sort of breaks apart 568 00:29:51,520 --> 00:29:54,680 Speaker 1: this whole concept of what an element is because if 569 00:29:54,680 --> 00:29:56,840 Speaker 1: we talk about this thing and it's not fundamental, right, 570 00:29:56,880 --> 00:29:59,920 Speaker 1: it's a special circumstances, something that appears in a spe 571 00:30:00,280 --> 00:30:04,120 Speaker 1: configuration under certain pressures and temperatures. And if you push 572 00:30:04,160 --> 00:30:06,720 Speaker 1: stuff together into a neutron star, I don't think you 573 00:30:06,720 --> 00:30:09,440 Speaker 1: can really call that an element because I think those 574 00:30:09,480 --> 00:30:13,240 Speaker 1: neutrons are in some crazy special state where they're really 575 00:30:13,320 --> 00:30:16,320 Speaker 1: crammed together. And we also don't know how to calculate 576 00:30:16,320 --> 00:30:18,480 Speaker 1: the details of how that works. As a whole other 577 00:30:18,600 --> 00:30:21,840 Speaker 1: field of study what's going on inside neutron stars. But 578 00:30:22,000 --> 00:30:24,440 Speaker 1: we talked about this one to like what's inside a 579 00:30:24,440 --> 00:30:27,160 Speaker 1: black hole, and we called it black hoolium because it's 580 00:30:27,200 --> 00:30:30,280 Speaker 1: some weird state of matter where these things are squished together. 581 00:30:30,280 --> 00:30:33,440 Speaker 1: So the boundaries between the neutrons and protons are probably 582 00:30:33,480 --> 00:30:37,000 Speaker 1: breaking down, right interesting, And what about for us as humans, Like, 583 00:30:37,040 --> 00:30:39,600 Speaker 1: what's the limiting factor? Why can't we just keep smashing 584 00:30:39,640 --> 00:30:43,400 Speaker 1: these heavier and heavier elements together to make super heavy elements. Well, 585 00:30:43,440 --> 00:30:45,840 Speaker 1: that's what we're doing, and there's an exciting program at 586 00:30:45,880 --> 00:30:48,880 Speaker 1: Berkeley and then a lab in Russia that's doing exactly that. 587 00:30:48,960 --> 00:30:51,480 Speaker 1: And that's how we've made element up to one eighteen, 588 00:30:52,000 --> 00:30:54,840 Speaker 1: is that we found lighter elements and we smashed them 589 00:30:54,880 --> 00:30:58,680 Speaker 1: together to try to make heavy elements. But it's not easy, right, 590 00:30:58,960 --> 00:31:01,280 Speaker 1: It's not easy for a couple of reasons. One is 591 00:31:01,480 --> 00:31:03,960 Speaker 1: that you just don't have that much of the ingredients. 592 00:31:04,240 --> 00:31:07,600 Speaker 1: For example, you want to make one seventeen, then you've 593 00:31:07,600 --> 00:31:12,200 Speaker 1: got to smash berkeley um, which is into calcium which 594 00:31:12,240 --> 00:31:15,920 Speaker 1: is twenty and there's not that much berkeleum around, Like 595 00:31:15,960 --> 00:31:19,360 Speaker 1: it took them two years of dedicated running just to 596 00:31:19,400 --> 00:31:23,520 Speaker 1: make twelve milligrams of berkeleum, which is like the minimum 597 00:31:23,520 --> 00:31:26,680 Speaker 1: you need to make this target to shoot calcium ad. 598 00:31:26,760 --> 00:31:28,880 Speaker 1: So it's just not easy to get the ingredients. If 599 00:31:28,920 --> 00:31:31,560 Speaker 1: we had an unlimited source of all the elements we knew, 600 00:31:32,000 --> 00:31:34,239 Speaker 1: we could smash them together to make heavier stuff. But 601 00:31:34,320 --> 00:31:36,080 Speaker 1: it's not easy that you can just like order these 602 00:31:36,160 --> 00:31:39,680 Speaker 1: ingredients on Amazon, which is probably gonna have its own 603 00:31:39,720 --> 00:31:44,560 Speaker 1: elements soon Amazonium. They're all just going to be bizosium, 604 00:31:44,600 --> 00:31:48,120 Speaker 1: bizosium one, zosium two. He owns everything anyway, No, he 605 00:31:48,160 --> 00:31:50,560 Speaker 1: retired to any He's just the puppet master behind the 606 00:31:50,560 --> 00:31:53,720 Speaker 1: scenes now. So I guess maybe my question is why 607 00:31:53,720 --> 00:31:56,840 Speaker 1: can't I just take, you know, like two plutonium atoms 608 00:31:56,880 --> 00:31:58,760 Speaker 1: and smash those together, you know, and then you get 609 00:31:58,880 --> 00:32:02,520 Speaker 1: ninety four plus ninety four are then you get you know. Yeah. 610 00:32:02,520 --> 00:32:04,680 Speaker 1: So the second reason is hard is that if you 611 00:32:04,680 --> 00:32:07,080 Speaker 1: smash them together, you just get a bunch of little bits. 612 00:32:07,360 --> 00:32:09,320 Speaker 1: You've got to do this thing which is sort of gentle. 613 00:32:09,360 --> 00:32:11,920 Speaker 1: You gotta push them together hard enough for them to emerge, 614 00:32:12,120 --> 00:32:14,880 Speaker 1: but not so hard that you destroy the outcome. Right, 615 00:32:15,160 --> 00:32:18,200 Speaker 1: you shoot two plutonium nuclei together at the speeds we 616 00:32:18,240 --> 00:32:20,520 Speaker 1: have the large hadron collider, you're just going to get 617 00:32:20,520 --> 00:32:22,760 Speaker 1: a huge explosion. In fact, we do that at the 618 00:32:22,840 --> 00:32:26,240 Speaker 1: large hadron collider. We collide usually protons and protons, but 619 00:32:26,320 --> 00:32:30,720 Speaker 1: sometimes we collide gold nuclei, sometimes lead nuclei, but you 620 00:32:30,760 --> 00:32:33,320 Speaker 1: don't get a stable atom, which you get is too 621 00:32:33,360 --> 00:32:36,120 Speaker 1: destroyed heavy nuclei. Oh I see. I guess if you 622 00:32:36,160 --> 00:32:39,000 Speaker 1: take like one thing built out of legos and you 623 00:32:39,040 --> 00:32:42,280 Speaker 1: smash it against something else that lego, you don't just 624 00:32:42,320 --> 00:32:45,120 Speaker 1: get one bigger thing made out of legos. You just 625 00:32:45,160 --> 00:32:47,040 Speaker 1: get a big best on your floor. Probably. Yeah, But 626 00:32:47,080 --> 00:32:48,920 Speaker 1: you know, if you take one brownie and you smash 627 00:32:48,960 --> 00:32:51,360 Speaker 1: and get another brownie, you kind of do just get 628 00:32:51,360 --> 00:32:54,320 Speaker 1: a double sized brownie. So maybe brownie physics is the 629 00:32:54,360 --> 00:32:56,080 Speaker 1: way to go. Yeah, you're in the wrong. You're in 630 00:32:56,080 --> 00:33:00,000 Speaker 1: the laboratory instead of the kitchen, Daniel, that's your problem. Yeah, 631 00:33:00,040 --> 00:33:01,800 Speaker 1: so you've got to bring these things together. So they 632 00:33:01,840 --> 00:33:04,880 Speaker 1: formed this stable state, but not with so much energy 633 00:33:05,000 --> 00:33:07,880 Speaker 1: that they destroy it. So this process is actually called 634 00:33:08,000 --> 00:33:12,960 Speaker 1: confusingly cold fusion. Nothing to do with the other notorious 635 00:33:12,960 --> 00:33:15,560 Speaker 1: cold fusion research that was done in the nineties that 636 00:33:15,680 --> 00:33:18,960 Speaker 1: try to produce energy from hydrogen fusion. This is a 637 00:33:19,000 --> 00:33:22,120 Speaker 1: totally separate process that's trying to emerge nuclei of heavy 638 00:33:22,160 --> 00:33:24,920 Speaker 1: atoms sort of kissed them together, so they turned into 639 00:33:24,960 --> 00:33:27,560 Speaker 1: this heavier thing, and you're just quite delicate. It's like 640 00:33:27,600 --> 00:33:32,280 Speaker 1: a reboot or a rebrand. It's a totally separate line 641 00:33:32,280 --> 00:33:35,720 Speaker 1: of research that actually predates the crazy cold fusion. This 642 00:33:35,840 --> 00:33:38,640 Speaker 1: is like actual cold fusion. And you know it makes sense. 643 00:33:38,680 --> 00:33:41,720 Speaker 1: It's fusion because they're merging together heavy nuclei to make 644 00:33:41,840 --> 00:33:44,800 Speaker 1: something new, and it's cold because they try not to 645 00:33:44,840 --> 00:33:46,840 Speaker 1: do it too hard. Right, Well, I guess that covers 646 00:33:47,000 --> 00:33:50,640 Speaker 1: why it's hard to make these super heavy elements. And 647 00:33:50,680 --> 00:33:53,360 Speaker 1: we sort of talked a little bit about what makes 648 00:33:53,400 --> 00:33:57,400 Speaker 1: these heavier elements possible and stable, but we still haven't 649 00:33:57,440 --> 00:34:01,320 Speaker 1: talked about why we can't make these super heavy elements, 650 00:34:01,400 --> 00:34:05,280 Speaker 1: or whether or not they're theoretically or practically possible. And 651 00:34:05,280 --> 00:34:07,240 Speaker 1: it all seems to have to do with this concept 652 00:34:07,280 --> 00:34:10,520 Speaker 1: of the island of stability. So let's get into what 653 00:34:10,560 --> 00:34:13,600 Speaker 1: this island is and whether or not it makes for 654 00:34:13,600 --> 00:34:30,439 Speaker 1: a pleasant vacation. First, let's take another quick break, all right, Daniel, 655 00:34:30,480 --> 00:34:33,680 Speaker 1: let's talk about the island of stability. Now, this has 656 00:34:33,719 --> 00:34:36,320 Speaker 1: to do with I'm guessing some sort of like special 657 00:34:36,360 --> 00:34:38,920 Speaker 1: configuration that the protons and neutrons have to be in 658 00:34:39,040 --> 00:34:42,160 Speaker 1: before they can make these magic numbers happen. Yeah, we 659 00:34:42,320 --> 00:34:45,120 Speaker 1: look at the pattern of the number of neutrons and 660 00:34:45,160 --> 00:34:48,680 Speaker 1: the number of protons that are in various atoms, and 661 00:34:48,760 --> 00:34:50,640 Speaker 1: you could ask the question, like, what happens if I 662 00:34:50,680 --> 00:34:54,960 Speaker 1: put seventeen neutrons and nine protons together, or a hundred 663 00:34:54,960 --> 00:34:58,719 Speaker 1: and forty four neutrons and protons, what do you get? 664 00:34:59,120 --> 00:35:01,400 Speaker 1: And most of the you get something unstable, which just 665 00:35:01,440 --> 00:35:05,080 Speaker 1: breaks apart almost instantly. But this this diagonal line where 666 00:35:05,280 --> 00:35:07,840 Speaker 1: the protons are increasing and the neutrons are increasing, and 667 00:35:07,880 --> 00:35:09,879 Speaker 1: you get a bunch of stable items, and those are 668 00:35:09,880 --> 00:35:12,239 Speaker 1: the elements that we know, right, but it sort of 669 00:35:12,360 --> 00:35:15,080 Speaker 1: runs out at a certain point there's like the heaviest element, 670 00:35:15,160 --> 00:35:17,880 Speaker 1: and above that things start to get really unstable, like 671 00:35:17,920 --> 00:35:23,040 Speaker 1: we were talking about. But nuclear theorists suggest or speculate 672 00:35:23,320 --> 00:35:26,520 Speaker 1: that deep beyond that, like far past the elements that 673 00:35:26,560 --> 00:35:29,320 Speaker 1: we know, if you have the right number of protons 674 00:35:29,320 --> 00:35:32,239 Speaker 1: and neutrons, there might be an island out there where 675 00:35:32,239 --> 00:35:34,720 Speaker 1: if you put them together, they can actually be stable. 676 00:35:34,760 --> 00:35:37,120 Speaker 1: They could last for a very very long time. Oh, 677 00:35:37,200 --> 00:35:39,960 Speaker 1: I see, like there's a maybe a whole range of 678 00:35:40,000 --> 00:35:43,680 Speaker 1: special combinations of protons and neutrons that is stable, but 679 00:35:43,760 --> 00:35:46,520 Speaker 1: it's just not connected to sort of the range of 680 00:35:46,560 --> 00:35:49,680 Speaker 1: stable configurations that we know about. Yeah, exactly, we have 681 00:35:49,760 --> 00:35:52,160 Speaker 1: like a peninsula jutting out. You know, they have the 682 00:35:52,160 --> 00:35:55,279 Speaker 1: pensula stability and then a gap, and you know, there's 683 00:35:55,520 --> 00:35:59,000 Speaker 1: no configuration where you could assemble those protons and neutrons 684 00:35:59,000 --> 00:36:00,840 Speaker 1: together to make something stay able. But then if you 685 00:36:00,920 --> 00:36:04,080 Speaker 1: keep going, you keep going, you find this island where 686 00:36:04,400 --> 00:36:07,040 Speaker 1: certain number of protons and certain number of neutrons, really 687 00:36:07,160 --> 00:36:11,160 Speaker 1: large crazy numbers could maybe actually hang out together and 688 00:36:11,200 --> 00:36:14,560 Speaker 1: be stable. Because I guess in general, it seems like 689 00:36:14,640 --> 00:36:17,040 Speaker 1: the number of protons and the number of neutrons needs 690 00:36:17,040 --> 00:36:19,960 Speaker 1: to be similar, right, Like you can't have an element 691 00:36:20,000 --> 00:36:23,000 Speaker 1: with one proton and a hundred neutrons, just like you 692 00:36:23,040 --> 00:36:25,360 Speaker 1: can't have an element with like a hundred protons and 693 00:36:25,400 --> 00:36:28,080 Speaker 1: one neutrons. It seems like nature likes for those two 694 00:36:28,160 --> 00:36:30,880 Speaker 1: numbers to be similar. Yeah, they do need to be similar, 695 00:36:31,000 --> 00:36:33,880 Speaker 1: but they're not exactly equal, right, Like, for example, you 696 00:36:33,960 --> 00:36:37,640 Speaker 1: tend to have more neutrons than protons, Like the line 697 00:36:37,800 --> 00:36:41,000 Speaker 1: veers up off the diagonal. So for example, if you 698 00:36:41,080 --> 00:36:44,640 Speaker 1: have eighty two protons in lead, then you have like 699 00:36:44,680 --> 00:36:48,239 Speaker 1: a hundred and twenties six neutrons in lead. So we 700 00:36:48,280 --> 00:36:51,400 Speaker 1: don't quite understand it, but it tends to prefer having 701 00:36:51,440 --> 00:36:54,600 Speaker 1: more neutrons than protons. But you're right, it's about the 702 00:36:54,640 --> 00:36:57,640 Speaker 1: same number. You can't go too far off the diet, right, right, 703 00:36:57,719 --> 00:36:59,759 Speaker 1: And the two numbers are a little bit different again 704 00:36:59,760 --> 00:37:02,640 Speaker 1: because of these magic numbers, like protons like to be 705 00:37:02,680 --> 00:37:05,799 Speaker 1: happy in certain numbers and neutrons like to be happy 706 00:37:05,800 --> 00:37:09,279 Speaker 1: in other numbers, and so it's getting the right combination 707 00:37:09,360 --> 00:37:12,719 Speaker 1: that gives you the stable element. Yeah, exactly. And lead, 708 00:37:12,760 --> 00:37:14,840 Speaker 1: for example, is one of these doublic magic ones that 709 00:37:14,880 --> 00:37:17,520 Speaker 1: has eighty two protons, which is a magic number, and 710 00:37:17,600 --> 00:37:21,080 Speaker 1: a hundred and twenties six neutrons, which is a magic number. 711 00:37:21,239 --> 00:37:23,640 Speaker 1: I see, And that works for us for up to 712 00:37:23,640 --> 00:37:26,840 Speaker 1: a certain point. But you're imagining that, or physicists are 713 00:37:26,880 --> 00:37:29,879 Speaker 1: imagining that maybe there's you know, a whole set of 714 00:37:29,920 --> 00:37:33,520 Speaker 1: combinations way out there, like you know, a thousand protons 715 00:37:33,560 --> 00:37:36,560 Speaker 1: and two thousand neutrons that maybe also stable, just like 716 00:37:36,640 --> 00:37:40,400 Speaker 1: let it, yeah exactly, not quite as far as two thousand. 717 00:37:40,680 --> 00:37:43,080 Speaker 1: Nobody's gone that far, but it might be true. Right, 718 00:37:43,080 --> 00:37:46,120 Speaker 1: It might be that these magic numbers just keep increasing, 719 00:37:46,280 --> 00:37:48,839 Speaker 1: and we have not just one island out there at 720 00:37:48,880 --> 00:37:51,680 Speaker 1: like a hundred and twenty protons, but another one at 721 00:37:51,680 --> 00:37:55,759 Speaker 1: a d eighty four protons, another one even further beyond that, 722 00:37:56,040 --> 00:37:58,399 Speaker 1: And so we find this island of stability. It might 723 00:37:58,440 --> 00:38:01,120 Speaker 1: suggest that you could just keep going on making like 724 00:38:01,360 --> 00:38:05,200 Speaker 1: riduculously heavy elements. I see, well, I guess the question, 725 00:38:05,280 --> 00:38:07,640 Speaker 1: Danniel is, how do you know that they're the island 726 00:38:07,680 --> 00:38:09,960 Speaker 1: and we're not the island? Like, what if we're the 727 00:38:10,000 --> 00:38:13,120 Speaker 1: island and they're the continent. That sounds great. I'm happy 728 00:38:13,120 --> 00:38:15,719 Speaker 1: to be on an island. I love islands. Islands are wonderful. 729 00:38:15,920 --> 00:38:18,600 Speaker 1: But these other islands, we think they would be disconnected. Right, 730 00:38:18,680 --> 00:38:22,000 Speaker 1: as the magic numbers increase, they get further and further apart, 731 00:38:22,400 --> 00:38:24,839 Speaker 1: and so you can't get as far away from sort 732 00:38:24,840 --> 00:38:28,080 Speaker 1: of this island of stability without falling into the ocean 733 00:38:28,200 --> 00:38:30,759 Speaker 1: of decay. I guess you what we call it? All? Right, Well, 734 00:38:30,800 --> 00:38:33,800 Speaker 1: all of this sounds a little bit theoretical. These magic 735 00:38:34,040 --> 00:38:38,200 Speaker 1: numbers combinations might exist, and it might give us stable atoms. 736 00:38:38,200 --> 00:38:40,400 Speaker 1: So what have pizzicts been doing to sort of explore 737 00:38:40,440 --> 00:38:42,759 Speaker 1: this or confirm or deny this. Well, one thing they've 738 00:38:42,760 --> 00:38:44,759 Speaker 1: been doing is just trying to make these things. And 739 00:38:44,760 --> 00:38:48,040 Speaker 1: so they're trying to push the technology, like create heavier 740 00:38:48,080 --> 00:38:51,320 Speaker 1: and heavier elements and see if there's this trend towards 741 00:38:51,400 --> 00:38:53,759 Speaker 1: increasing stability. We don't have to actually get all the 742 00:38:53,800 --> 00:38:56,480 Speaker 1: way onto the island to have an idea that it 743 00:38:56,560 --> 00:38:59,920 Speaker 1: might be there. If as we make heavier and heavier elements, 744 00:39:00,239 --> 00:39:02,640 Speaker 1: we see the stability to go up and up and up, 745 00:39:02,840 --> 00:39:04,959 Speaker 1: and that suggests that we're like on the right path. 746 00:39:05,040 --> 00:39:08,480 Speaker 1: We're like coming up the shore towards the island of stability. 747 00:39:09,080 --> 00:39:11,960 Speaker 1: I see, we're like testing the waters kind of, yeah, exactly. 748 00:39:12,239 --> 00:39:14,640 Speaker 1: And so for example, in the nineties, people were working 749 00:39:14,640 --> 00:39:17,960 Speaker 1: on making this atom fleruvium, which is number one hundred 750 00:39:18,000 --> 00:39:20,200 Speaker 1: and fourteen, and they worked on it for a long 751 00:39:20,280 --> 00:39:23,400 Speaker 1: time and they saw one, like they made a single 752 00:39:23,480 --> 00:39:26,799 Speaker 1: one of these atoms. What they could tell like, hey, 753 00:39:26,800 --> 00:39:30,200 Speaker 1: we made one atom of this. It's hard to do, right, 754 00:39:30,280 --> 00:39:34,719 Speaker 1: So they were smashing plutonium onto calcium and they were 755 00:39:34,760 --> 00:39:38,720 Speaker 1: looking for individual ones. They are sensitive to individual atoms, 756 00:39:38,719 --> 00:39:41,640 Speaker 1: which is pretty cool, and they made this one and 757 00:39:41,640 --> 00:39:45,160 Speaker 1: it stuck around for like thirty seconds, which is crazy 758 00:39:45,280 --> 00:39:47,799 Speaker 1: long for a heavy element. Right, it's not as long 759 00:39:47,840 --> 00:39:49,759 Speaker 1: as we think the island of stability as we think 760 00:39:50,000 --> 00:39:53,480 Speaker 1: those elements might have lifetimes and thousands, millions or billions 761 00:39:53,480 --> 00:39:56,720 Speaker 1: of years, but it's much longer than the lighter elements 762 00:39:56,760 --> 00:39:58,799 Speaker 1: just before. So it's sort of like this trend we 763 00:39:58,800 --> 00:40:01,680 Speaker 1: were looking for. I see. So they try to make 764 00:40:01,680 --> 00:40:05,440 Speaker 1: this element and it lasted for thirty seconds once once, 765 00:40:05,880 --> 00:40:08,640 Speaker 1: and then they were never able to make it again. Right, 766 00:40:08,880 --> 00:40:11,320 Speaker 1: people have been trying to make this again and again, 767 00:40:11,600 --> 00:40:13,680 Speaker 1: but they just haven't been able to and so we 768 00:40:13,719 --> 00:40:16,720 Speaker 1: don't know if that was wrong or if they got lucky. 769 00:40:16,800 --> 00:40:19,839 Speaker 1: And it's just really really hard. Sometimes these experiments can 770 00:40:19,880 --> 00:40:21,840 Speaker 1: go for years without making one and then get like 771 00:40:21,880 --> 00:40:24,359 Speaker 1: two atoms made in a single week. It's just sort 772 00:40:24,360 --> 00:40:26,840 Speaker 1: of up to luck. Wow, that's crazy. What must it 773 00:40:26,920 --> 00:40:29,480 Speaker 1: feel like to have made this. It's like finding one 774 00:40:29,600 --> 00:40:32,200 Speaker 1: unicorn and then it goes away, and then you're trying 775 00:40:32,200 --> 00:40:35,600 Speaker 1: to tell everyone that unicorns exists exactly. And if I 776 00:40:35,640 --> 00:40:37,880 Speaker 1: made a unicorn in the large Hadron collider, I'd be 777 00:40:37,880 --> 00:40:40,960 Speaker 1: pretty excited, but yeah, I'd hope it was reproducible. That's 778 00:40:41,000 --> 00:40:43,360 Speaker 1: for thirty seconds and then nobody else saw it, Daniel, 779 00:40:43,680 --> 00:40:46,040 Speaker 1: then I would doubt my sanity and I would book 780 00:40:46,040 --> 00:40:48,520 Speaker 1: a trip to the island of stability to restore myself. 781 00:40:48,520 --> 00:40:50,440 Speaker 1: There you go. I guess you should have taken a 782 00:40:50,480 --> 00:40:53,879 Speaker 1: selfie with it, or it didn't happen. All right. Well, 783 00:40:54,080 --> 00:40:56,880 Speaker 1: let's say we do start to make these super duper 784 00:40:56,880 --> 00:40:59,440 Speaker 1: heavy elements. I guess what would they be good for 785 00:41:00,080 --> 00:41:03,799 Speaker 1: is making better paperweights? Well, they'd be fascinating sort of theoretically, 786 00:41:03,800 --> 00:41:06,160 Speaker 1: because they would tell us that we do understand something 787 00:41:06,160 --> 00:41:08,759 Speaker 1: about how the nucleus comes together, and they would help 788 00:41:08,840 --> 00:41:11,319 Speaker 1: us predict like where the next island of stability is. 789 00:41:11,320 --> 00:41:13,520 Speaker 1: That it's always just sort of good to learn, like 790 00:41:13,680 --> 00:41:16,240 Speaker 1: at a basic level, how does the universe fit together? 791 00:41:16,280 --> 00:41:18,200 Speaker 1: How can you fit these things together and can build 792 00:41:18,239 --> 00:41:20,839 Speaker 1: something that hangs together? That sort of from the abstract, 793 00:41:20,960 --> 00:41:23,640 Speaker 1: I just want to know area. But there are also 794 00:41:23,760 --> 00:41:27,359 Speaker 1: potential practical uses. Remember that a lot of our spacecraft 795 00:41:27,400 --> 00:41:30,279 Speaker 1: that we send out there to explore the universe run 796 00:41:30,360 --> 00:41:34,040 Speaker 1: on nuclear fuel. For example, the Mars Rover that just landed, 797 00:41:34,160 --> 00:41:37,560 Speaker 1: or Voyager and Pioneer. They're deep out into space, they 798 00:41:37,560 --> 00:41:41,520 Speaker 1: have nuclear batteries on them, and super heavy elements which 799 00:41:41,560 --> 00:41:44,400 Speaker 1: are not completely stable but last for a long time 800 00:41:45,000 --> 00:41:47,959 Speaker 1: might be excellent sources of power for spacecraft. Oh, I see, 801 00:41:48,160 --> 00:41:51,160 Speaker 1: Like you would make a super heavy element and then 802 00:41:51,640 --> 00:41:54,120 Speaker 1: use the decay to like power your spaceship for a 803 00:41:54,160 --> 00:41:56,320 Speaker 1: thousand years exactly. And you want your fuel to last 804 00:41:56,320 --> 00:41:58,239 Speaker 1: the whole length of your trip. And so if you 805 00:41:58,239 --> 00:42:00,400 Speaker 1: want to go really really far, then you need which 806 00:42:00,480 --> 00:42:04,560 Speaker 1: is not totally stable. It takes a long time to decay, 807 00:42:04,640 --> 00:42:06,760 Speaker 1: and so if you want to fly for a million years, 808 00:42:06,760 --> 00:42:08,479 Speaker 1: then you need to find something with a half life 809 00:42:08,480 --> 00:42:11,080 Speaker 1: of about a million years. I see, because if you 810 00:42:11,160 --> 00:42:15,200 Speaker 1: even plutonium won't last you forever. Well, eventually all decays exactly, 811 00:42:15,200 --> 00:42:17,560 Speaker 1: And the heavier elements are also denser, right, so you 812 00:42:17,600 --> 00:42:19,960 Speaker 1: can carry them around in sort of smaller spaces, and 813 00:42:20,000 --> 00:42:24,239 Speaker 1: you know, space is always a premium on these spacecraft. Interesting, 814 00:42:24,400 --> 00:42:26,000 Speaker 1: and I guess it would also just teach us just 815 00:42:26,080 --> 00:42:29,319 Speaker 1: about matter and what's possible and what corner of the 816 00:42:29,440 --> 00:42:31,640 Speaker 1: universe do we exist in, Like do we exist in 817 00:42:31,719 --> 00:42:34,799 Speaker 1: the the most common one? Or are we sort of 818 00:42:34,800 --> 00:42:37,759 Speaker 1: a flute? Yeah, And there are crazy ideas for what 819 00:42:37,880 --> 00:42:40,920 Speaker 1: these super heavy elements might look like. People have the 820 00:42:41,000 --> 00:42:43,640 Speaker 1: idea that, for example, the nucleus of one of these 821 00:42:43,680 --> 00:42:46,960 Speaker 1: super heavy elements like dred and eighty four protons and 822 00:42:47,000 --> 00:42:49,839 Speaker 1: it might not even be spherical, you know, the way 823 00:42:49,880 --> 00:42:52,480 Speaker 1: you think about like electrons having shells, and some of 824 00:42:52,480 --> 00:42:54,440 Speaker 1: those things have like weird blobs in shapes to them. 825 00:42:54,800 --> 00:42:57,840 Speaker 1: Some people speculate that the nucleus of a super heavy 826 00:42:57,840 --> 00:43:00,759 Speaker 1: element might be sort of like a finguer eight, or 827 00:43:00,840 --> 00:43:02,600 Speaker 1: it might be sort of like a bubble, like be 828 00:43:02,760 --> 00:43:06,480 Speaker 1: hollow and have like no neutrons and protons inside, could 829 00:43:06,480 --> 00:43:10,080 Speaker 1: be sort of like an actual physical shell. Interesting, but 830 00:43:10,120 --> 00:43:11,840 Speaker 1: you would only see that if you drill down to 831 00:43:11,880 --> 00:43:14,400 Speaker 1: the nucleus of this atom, right, yeah, exactly. You have 832 00:43:14,440 --> 00:43:16,480 Speaker 1: to make a bunch of them and then somehow probe 833 00:43:16,520 --> 00:43:20,000 Speaker 1: them by shooting particles at them. So you'd make your unicorn, 834 00:43:20,040 --> 00:43:22,719 Speaker 1: and then you kill your unicorn in doing experiments on it. 835 00:43:24,640 --> 00:43:27,920 Speaker 1: What if the nucleus looks like a unicorn? That's theoretically possible, 836 00:43:27,960 --> 00:43:30,399 Speaker 1: isn't it. It's theoretically possible. There must be some magic 837 00:43:30,480 --> 00:43:32,040 Speaker 1: number for that. It would make it very hard to 838 00:43:32,040 --> 00:43:33,920 Speaker 1: shoot particles at it because it would be so cute. 839 00:43:34,040 --> 00:43:36,200 Speaker 1: People like, oh, let's not study this thing, let's just 840 00:43:36,320 --> 00:43:38,600 Speaker 1: let it go. Be a tragedy to see a decayed 841 00:43:39,920 --> 00:43:42,080 Speaker 1: And then there are also folks who are just looking 842 00:43:42,080 --> 00:43:44,359 Speaker 1: for this stuff. They think, let's not build this, let's 843 00:43:44,400 --> 00:43:47,160 Speaker 1: see if it exists in nature. As you were saying, 844 00:43:47,320 --> 00:43:50,400 Speaker 1: sometimes crazy stuff happens at the core of neutron stars. 845 00:43:50,440 --> 00:43:53,600 Speaker 1: How do we know that these crazy heavy elements haven't 846 00:43:53,640 --> 00:43:56,360 Speaker 1: already been made and just like lying in the ground 847 00:43:56,480 --> 00:43:59,200 Speaker 1: waiting for us to find them. Interesting, So there's a 848 00:43:59,200 --> 00:44:02,480 Speaker 1: pretty amazing possibilities out there. There are really crazy possibilities 849 00:44:02,520 --> 00:44:04,880 Speaker 1: out there. And there's even a guy from Hebrew University 850 00:44:04,920 --> 00:44:07,360 Speaker 1: who claimed in two thousand and eight to have discovered 851 00:44:07,360 --> 00:44:10,160 Speaker 1: some of these things. He didn't see them directly, but 852 00:44:10,200 --> 00:44:13,160 Speaker 1: he saw a bunch of crystals with like weird radiation 853 00:44:13,280 --> 00:44:15,640 Speaker 1: damage that he claimed could only have been made by 854 00:44:15,640 --> 00:44:18,640 Speaker 1: the decay of a super duper heavy element. But then again, 855 00:44:18,640 --> 00:44:20,600 Speaker 1: of course other people look for the same sort of 856 00:44:20,600 --> 00:44:24,480 Speaker 1: patterns and didn't spot them, so it's not really reproduced interesting, 857 00:44:24,960 --> 00:44:27,600 Speaker 1: I guess. Then the hunt goes on for the heaviest 858 00:44:27,600 --> 00:44:32,040 Speaker 1: element possible in the universe, both theoretically and experimentally. Yes, exactly, 859 00:44:32,080 --> 00:44:35,160 Speaker 1: it's just another way we can continue to explore the 860 00:44:35,239 --> 00:44:38,000 Speaker 1: nature of the universe that we find around us. We 861 00:44:38,040 --> 00:44:40,520 Speaker 1: can put these building blocks together and try to create 862 00:44:40,640 --> 00:44:43,960 Speaker 1: new stuff, become like masters of the universe and make 863 00:44:44,200 --> 00:44:47,320 Speaker 1: new weird elements that we could then use and build 864 00:44:47,320 --> 00:44:50,000 Speaker 1: stuff out of it, and also just gain insight into 865 00:44:50,040 --> 00:44:53,279 Speaker 1: how matter works. Cool. Well, I've always been curious about 866 00:44:53,320 --> 00:44:56,560 Speaker 1: how heavy I can get, and um, I'll let you 867 00:44:56,560 --> 00:44:59,240 Speaker 1: know how that goes. Just keep shooting brownies at yourself 868 00:44:59,280 --> 00:45:03,160 Speaker 1: and eventually happen. Just keep colliding brownies with my mouth. 869 00:45:04,600 --> 00:45:10,040 Speaker 1: It's an experiment. It's an experiment. I promise it's for science. Yeah, 870 00:45:10,040 --> 00:45:13,480 Speaker 1: all that teems like a foregone conclusion about what's gonna happen. Well, 871 00:45:13,520 --> 00:45:17,560 Speaker 1: eventually you might just decay. Well, eventually we all decayed, Daniel. 872 00:45:17,800 --> 00:45:20,360 Speaker 1: The question is how many brownies will you have eaten 873 00:45:20,520 --> 00:45:23,840 Speaker 1: before that happens to you? I think it's an ancient 874 00:45:23,920 --> 00:45:26,880 Speaker 1: question in philosophy. All right, Well, keep thinking about the 875 00:45:27,000 --> 00:45:29,879 Speaker 1: universe and keep thinking about what kinds of matter could 876 00:45:29,920 --> 00:45:33,120 Speaker 1: exist out there. There could be who knows, magic number 877 00:45:33,440 --> 00:45:36,880 Speaker 1: figure eight elements out there that maybe look like unicorns. 878 00:45:37,200 --> 00:45:40,000 Speaker 1: That's right, and we will continue to explore the universe 879 00:45:40,040 --> 00:45:43,040 Speaker 1: and try to understand this stuff. Not just taking stuff 880 00:45:43,040 --> 00:45:45,200 Speaker 1: apart and figuring out what it's made out of at 881 00:45:45,200 --> 00:45:47,799 Speaker 1: the smallest scale, but putting it back together and trying 882 00:45:47,840 --> 00:45:51,000 Speaker 1: to make new crazy stuff for us to experience, to 883 00:45:51,080 --> 00:45:53,759 Speaker 1: fly us around the universe, and to make delicious new 884 00:45:53,840 --> 00:45:57,080 Speaker 1: kinds of desserts. For warning, I would appreciate that. Thank 885 00:45:57,120 --> 00:46:00,000 Speaker 1: you in my island of stability. Who says particle physics 886 00:46:00,239 --> 00:46:03,160 Speaker 1: has no applications? All right, Well, we hope you enjoyed Dad, 887 00:46:03,200 --> 00:46:13,960 Speaker 1: Thanks for joining us, See you next time. Thanks for listening, 888 00:46:13,960 --> 00:46:16,680 Speaker 1: and remember that Daniel and Jorge explained. The Universe is 889 00:46:16,719 --> 00:46:20,120 Speaker 1: a production of I Heart Radio or more podcast. For 890 00:46:20,239 --> 00:46:24,000 Speaker 1: my heart Radio, visit the I Heart Radio app, Apple Podcasts, 891 00:46:24,120 --> 00:46:26,480 Speaker 1: or wherever you listen to your favorite shows.